If I was in a situation that impose me to choose between an animal or a human to save their life, which one should I choose ? and why ?

Not an easy question to answer as one can imagine all kinds of factors entering the picture: imagine the human being is s murderer who threatens to kill you or someone who intends to commit suicide after the rescue or imagine the human asks you to rescue the animal instead of him or herself. Leaving aside that humans are also animals, the nonhuman animal may be carrying a deadly disease or a being with very little evidence of thought, emotion, and rationality (like an ant) or it may be a porpoise who rescued you when you were drowning (there is a record of such a rescue in the first history in the west by Heroditus (Book I of his Histories). But leaving aside all these complications, I think we humans are naturally disposed to value other humans because of our being thinking, feeling, reflective individuals who are capable of appreciating and protecting values, being creative and imaginative, capable of entering into worthy, loving relationships, beings who have meaningful goals and desires, and other such properties and capabilities. There may also be religious reasons that enter the picture. But while I would opt for saving the human (assuming that all the other facts noted at the outset were not in play) and if I am the human I hope you will rescue me, some philosophers such as Tom Regan and Peter Singer regard your question as very important and they allow for cases when (in principle) it would be better to rescue the nonhuman animal rather than rescuing you or me. See Regan's major work on animal rights.

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